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Anatomy Week 2 Lab
Question | Answer |
---|---|
3 major regions in animal cells | nucleus, plasma membrane, & cytoplasm |
genetic material loosely dispersed throughout the nucleus in a threadlike form | chromatin |
when dividing cells form daughter cells, the chromatin coils and condenses forming dense rodlike bodies called | chromosomes |
in the nucleus, there is one or more small spherical bodies called ____________ that are composed primarily of proteins and RNA | nucleoli |
the nucleus is bound by a double -layered porous membrane called the | nuclear envelope |
these are on the surface of the nuclear envelope and allow things to pass through | nuclear pores |
tiny spherical bodies composed of RNA and protein that float free or are attached to the rough ER; in charge of protein synthesis | ribosomes |
membranous system of tubules that extend through cytoplasm | endoplasmic reticulum |
studded with ribosomes and provide an area for storage and transport of the proteins made on the ribosomes to other cell areas | rough endoplasmic reticulum |
NO function in protein synthesis; site of steroid and lipid synthesis, lipid metabolism, and drug detoxification | smooth endoplasmic reticulum |
stack of flattened sacs found close to the nucleus; packages proteins to export from the cell, use in plasma membrane & in packaging lysosomal enzymes | golgi apparatus |
various sized membrane sacs containing digestive enzymes; digests worn out cell organelles and foreign substances; can cause total cell destruction "suicide sacs" | lysosomes |
small lysosome-like sacs that detoxify alcohol, free radicals, & other harmful chemicals; abdundant in liver & kidney cells | peroxisomes |
rod-shaped bodies (i think bean) with a double membrane wall; inner membrane like folds, oxidizes food to produce cell energy (ATP) | mitochondria |
paired, cylindrical bodies that lie at right angles of each other close to the nucleus, 9 triplets of microtubules; forms mitotic spindle during cell division, forms basal bodies | centrioles |